Patents by Inventor Fumiko Sakai
Fumiko Sakai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8765789Abstract: The present invention relates to a compound which has a glucokinase-activating effect and is useful as a therapeutic agent for diabetes mellitus, being represented by a formula (I): [wherein X1 represents a nitrogen atom, sulfur atom, oxygen atom or the like; R1 represents a 6- to 10-membered aryl group, 5- to 7-membered heteroaryl group or the like; D represents an oxygen atom or sulfur atom; R2 and R3 are the same or different, each representing a hydrogen atom, lower alkyl group or the like; a formula (II) represents an optionally substituted 5- to 7-membered heteroaryl group or the like; a formula (III) represents a monocyclic or bicyclic heteroaryl group] or a pharmaceutically acceptable salt thereof.Type: GrantFiled: November 27, 2012Date of Patent: July 1, 2014Assignee: MSD K.K.Inventors: Morihiro Mitsuya, Makoto Bamba, Fumiko Sakai, Hitomi Watanabe, Yasuhiro Sasaki, Teruyuki Nishimura, Jun-ichi Eiki
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Patent number: 8344003Abstract: The present invention relates to a compound which has a glucokinase-activating effect and is useful as a therapeutic agent for diabetes mellitus, being represented by a formula (I): [wherein X1 represents a nitrogen atom, sulfur atom, oxygen atom or the like; R1 represents a 6- to 10-membered aryl group, 5- to 7-membered heteroaryl group or the like; D represents an oxygen atom or sulfur atom; R2 and R3 are the same or different, each representing a hydrogen atom, lower alkyl group or the like; a formula (II) represents an optionally substituted 5- to 7-membered heteroaryl group or the like; a formula (III) represents a monocyclic or bicyclic heteroaryl group] or a pharmaceutically acceptable salt thereof.Type: GrantFiled: October 23, 2009Date of Patent: January 1, 2013Assignee: MSD K. K.Inventors: Morihiro Mitsuya, Makoto Bamba, Fumiko Sakai, Hitomi Watanabe, Yasuhiro Sasaki, Teruyuki Nishimura, Jun-ichi Eiki
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Patent number: 7932394Abstract: A glucokinase activator is provided; and a treatment and/or a preventive for diabetes, or a treatment and/or a preventive for diabetes such as retinopathy, nephropathy, neurosis, ischemic cardiopathy, arteriosclerosis, and further a treatment and/or a preventive for obesity are provided. The invention relates to a compound of a formula (I): [wherein R1 and R2 represent a hydrogen, etc.; R3 represents a hydrogen atom, a halogen atom, etc.; R4 each independently represents a hydrogen atom, a lower alkyl group, etc.; Q represents a carbon atom, a nitrogen atom or a sulfur atom (the sulfur atom may be mono- or di-substituted with an oxo group); R5 and R6 each represent a hydrogen atom, a lower alkyl group, etc.Type: GrantFiled: November 1, 2005Date of Patent: April 26, 2011Assignee: MSD K.K.Inventors: Noriaki Hashimoto, Keiji Takahashi, Chisato Nakama, Yoshio Ogino, Fumiko Sakai, Teruyuki Nishimura, Jun-ichi Eiki
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Patent number: 7728025Abstract: A glucokinase activator is provided; and a remedy and/or a preventive for diabetes, or a remedy and/or a preventive for diabetes such as retinopathy, nephropathy, neurosis, ischemic cardiopathy, arteriosclerosis, and further a remedy and/or a preventive for obesity are provided. A glucokinase activator characterized by containing a 2-heteroaryl-substituted benzimidazole derivative of a general formula (I-0) or its pharmaceutically-acceptable salt: [in the formula, X represents a carbon atom or a nitrogen atom; X1, X2, X3 and X4 each independently represent a carbon atom or a nitrogen atom; the ring A represents a 5- or 6-membered nitrogen-containing aromatic hetero ring of a formula (II): (in the formula, X represents a carbon atom or a nitrogen atom); R1 represents an aryl, etc.; R2 represents a hydroxy, etc.; R3 represents a —C1-6 alkyl, etc.; R4 represents a —C1-6 alkyl, etc.; X5 represents —O—, etc.Type: GrantFiled: December 28, 2004Date of Patent: June 1, 2010Assignee: Banyu Pharmaceutical Co., Ltd.Inventors: Katsumasa Nonoshita, Makoto Ishikawa, Hiroshi Nakashima, Daisuke Tsukahara, Yoshio Ogino, Fumiko Sakai, Yoshikazu Nagae, Keisuke Arakawa, Teruyuki Nishimura
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Publication number: 20100041660Abstract: The present invention relates to a compound which has a glucokinase-activating effect and is useful as a therapeutic agent for diabetes mellitus, being represented by a formula (I): [wherein X1 represents a nitrogen atom, sulfur atom, oxygen atom or the like; R1 represents a 6- to 10-membered aryl group, 5- to 7-membered heteroaryl group or the like; D represents an oxygen atom or sulfur atom; R2 and R3 are the same or different, each representing a hydrogen atom, lower alkyl group or the like; a formula (II) represents an optionally substituted 5- to 7-membered heteroaryl group or the like; a formula (III) represents a monocyclic or bicyclic heteroaryl group] or a pharmaceutically acceptable salt thereof.Type: ApplicationFiled: October 23, 2009Publication date: February 18, 2010Inventors: MORIHIRO MITSUYA, Makoto Bamba, Fumiko Sakai, Hitomi Watanabe, Yasuhiro Sasaki, Teruyuki Nishimura, Jun-ichi Eiki
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Patent number: 7629362Abstract: The present invention relates to a compound which has a glucokinase-activating effect and is useful as a therapeutic agent for diabetes mellitus, being represented by a formula (I): [wherein X1 represents a nitrogen atom, sulfur atom, oxygen atom or the like; R1 represents a 6- to 10-membered aryl group, 5- to 7-membered heteroaryl group or the like; D represents an oxygen atom or sulfur atom; R2 and R3 are the same or different, each representing a hydrogen atom, lower alkyl group or the like; a formula (II) represents an optionally substituted 5- to 7-membered heteroaryl group or the like; a formula (III) represents a monocyclic or bicyclic heteroaryl group] or a pharmaceutically acceptable salt thereof.Type: GrantFiled: February 13, 2004Date of Patent: December 8, 2009Assignee: Banyu Pharmaceutical Co., Ltd.Inventors: Morihiro Mitsuya, Makoto Bamba, Fumiko Sakai, Hitomi Watanabe, Yasuhiro Sasaki, Teruyuki Nishimura, Jun-ichi Eiki
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Publication number: 20080125429Abstract: A glucokinase activator is provided; and a treatment and/or a preventive for diabetes, or a treatment and/or a preventive for diabetes such as retinopathy, nephropathy, neurosis, ischemic cardiopathy, arteriosclerosis, and further a treatment and/or a preventive for obesity are provided. The invention relates to a compound of a formula (I): [wherein R1 and R2 represent a hydrogen, etc.; R3 represents a hydrogen atom, a halogen atom, etc.; R4 each independently represents a hydrogen atom, a lower alkyl group, etc.; Q represents a carbon atom, a nitrogen atom or a sulfur atom (the sulfur atom may be mono- or di-substituted with an oxo group); R5 and R6 each represent a hydrogen atom, a lower alkyl group, etc.Type: ApplicationFiled: November 1, 2005Publication date: May 29, 2008Applicant: BANYU PHARMACEUTICAL CO., LTD.Inventors: Noriaki Hashimoto, Keiji Takahashi, Chisato Nakama, Yoshio Ogino, Fumiko Sakai, Teruyuki Nishimura, Jun-ichi Eiki
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Publication number: 20080070928Abstract: A glucokinase activator is provided; and a remedy and/or a preventive for diabetes, or a remedy and/or a preventive for diabetes such as retinopathy, nephropathy, neurosis, ischemic cardiopathy, arteriosclerosis, and further a remedy and/or a preventive for obesity are provided. A glucokinase activator characterized by containing a 2-heteroaryl-substituted benzimidazole derivative of a general formula (I-0) or its pharmaceutically-acceptable salt: [in the formula, X represents a carbon atom or a nitrogen atom; X1, X2, X3 and X4 each independently represent a carbon atom or a nitrogen atom; the ring A represents a 5- or 6-membered nitrogen-containing aromatic hetero ring of a formula (II): (in the formula, X represents a carbon atom or a nitrogen atom); R1 represents an aryl, etc.; R2 represents a hydroxy, etc.; R3 represents a —C1-6 alkyl, etc.; R4 represents a —C1-6 alkyl, etc.; X5 represents —O—, etc.Type: ApplicationFiled: December 28, 2004Publication date: March 20, 2008Inventors: Katsumasa Nonoshita, Makoto Ishikawa, Hiroshi Nakashima, Daisuke Tsukahara, Yoshio Ogino, Fumiko Sakai, Yoshikazu Nagae, Keisuke Arakawa, Teruyuki Nishimura, Jun-Ichi Eiki
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Patent number: 5527385Abstract: A thermochromic composition which comprises(1) an electron-donating chromogenic organic compound,(2) an electron-accepting compound,(3) at least one desensitizer selected from among hydrazide compounds, and(4) a thermochromic transition temperature modifier.Type: GrantFiled: August 3, 1993Date of Patent: June 18, 1996Assignee: Sakura Color Products CorporationInventors: Masaaki Sumii, Fumiko Sakai, Yasuyuki Yoshimura
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Patent number: 5350633Abstract: A thermochromic composition which comprises (1) an electron-donating chromogenic organic compound, (2) an electron-accepting compound, and (3) at least one desensitizer selected from among carbazole derivatives of the following formulas: ##STR1## wherein R is an alkyl group containing 1 to 22 carbon atoms, a phenyl group or a benzyl group and X is a hydrogen atom, a halogen atom, --NH.sub.2, --NO.sub.2 or --CHO; ##STR2## wherein R is an alkyl group containing 1 to 22 carbon atoms and X is a hydrogen atom, a halogen atom, --NH.sub.2, --NO.sub.2 or --CHO. A thermochromic composition which comprises (1) an electron-donating chromogenic organic compound, (2) an electron-accepting compound, (3) at least one desensitizer selected from among carbazole derivatives mentioned above, and (4) a thermochromic transition temperature modifier. A thermochromic composition which comprises one of the thermochromic compositions mentioned above as enclosed in microcapsule.Type: GrantFiled: August 10, 1993Date of Patent: September 27, 1994Assignee: Sakura Color Products CorporationInventors: Masaaki Sumii, Fumiko Sakai, Yasuyuki Yoshimura
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Patent number: 5350634Abstract: A thermochromic composition which comprises (1) an electron-donating chromogenic organic compound, (2) an electron-accepting compound, and (3) at least one desensitizer selected from among diphenylamine derivatives of-the following formulas: ##STR1## wherein R.sup.1 and R.sup.2 each independently is H, an alkyl group containing 1 to 22 carbon atoms, ##STR2## (in which R.sup.3 and R.sup.4 each independently is H, an alkyl group containing 1 to 4 carbon atoms). A thermochromic composition which comprises (1) an electron-donating chromogenic organic compound, (2) an electron-accepting compound, (3) at least one desensitizer selected from among diphenylamine derivatives mentioned above, and (4) a thermochromic transition temperature modifier. A thermochromic composition which comprises one of the thermochromic compositions mentioned above as enclosed in microcapsule.Type: GrantFiled: August 10, 1993Date of Patent: September 27, 1994Assignee: Sakura Color Products CorporationInventors: Masaaki Sumii, Fumiko Sakai, Yasuyuki Yoshimura